.papers-logo {
	text-align: center;
	padding: 10px 0px;
}

section {
	background-color: #E2E2E2;
	padding-bottom: 20px;
}

section article h2 {
	color: #666;
	margin: 0px;
	width: auto;
	font-family:Georgia, "Times New Roman", Times, serif;
	font-size: 20px;
	line-height: 25px;
	width: 92%;
	padding-left: 5px;
	margin-bottom:6px;
	margin-top: 10px;
}
section article h2 a {
	color: #666;
	text-decoration: none;
}
section article h2 a:hover {
	color: #000;
}
To learn

article {
	font-family:Georgia, "Times New Roman", Times, serif;
	
	padding-bottom: 10px;
	display: inline-table;
	text-align: start;
}

#papers article:nth-child(even) {
	float:left;
	width: 48%;
	margin-left: 2%;
}
#papers article:nth-child(odd) {
	float:left;
	border-right: 1px #888 solid;
	width: 48%;
	margin-left: 2%;
}

article img {
	float:left;
	width:  45%;
	margin-left: 2%;
	margin-right: 0.5em;
	margin-bottom: 0.5em;
	border: 1px #444 solid;
}

article p {
	color: #666;
	font-size: 12px;
	line-height: 140%;
	width: 92%;
	margin-left: 2%;
	margin-right: 2%;
	text-align:justify;
	letter-spacing: .06em;
}

article footer {
	display: block;
	padding: 0px;
	margin: 0px;
	padding-top: 10px;
}

article footer a {
	font-size: 12px;
	color: #666;
}
article footer a:hover {
	color: #000;
}

article footer p {
	font-size: 12px;
	font-style: italic;
	color: #666;
}

hr {
	display: block;
	border-style: none;
	border-top-style: solid;
	border-top-color: #888;
	border-top-width: 1px;
	margin: 10px 0px 0px 0px;
	padding: 0px 0px;
	width: 92%;
	margin-left: 2%;
	margin-right: 2%;
}

img.banner {
	float:left;
	display: inline-table;
	width:  92%;
	margin-left: 2%;
	margin-top: 0.5em;
	border: none;
}